the way I see it, you provoked them by comming at them with your light off and sneaking up, why did you just roll up and ask if it was their cars?
whenever Ime with my boys and some car sneaks up and stares at the cars, we immediatley get paranoid ....and run out to see who it is.. if they jolted like you did, we would probably assume they are up to no good, if they waved and sayed somethign like nice cars or whatever, it would be assumed they were just appreciating the cars...
Just always be really blunt when dealing with a group of guys and their cars.. because there are a lot of theives out there and you dont want to put yourself in a position to cause suspicion, or make them think you are up to no good..
even at meets when guys drive by and keep a serious face, everyone assumes they are mean mugging when in all actuality they are probably just shy and dont have the courage to say hi..
it goes the same way with other car groups.. they will always assume the worst if you dont make your intentions clear..
